Chione Ltd - 11 Feb 2025 SCHEDULE 13D/A Report for Sera Prognostics, Inc. Class A Common Stock (SERA)

Filing Manager
Chione Ltd
Reporting Manager
Chione Ltd.
Security
Sera Prognostics, Inc. Class A Common Stock
Symbol
SERA
Shares outstanding
34,280,934 shares
Disclosed Ownership
2,605,351 shares
Ownership
7.6%
Form type
SCHEDULE 13D/A
Filing time
14 Feb 2025, 17:00:50 UTC
Date of event
11 Feb 2025
SEC
View on sec.gov

Quoteable Key Fact

"Chione Ltd disclosed 7.6% ownership in Sera Prognostics, Inc. Class A Common Stock (SERA) on 11 Feb 2025."

Quick Takeaways

  • Chione Ltd filed SCHEDULE 13D/A for Sera Prognostics, Inc. Class A Common Stock (SERA).
  • Disclosed ownership: 7.6%.
  • Date of event: 11 Feb 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 14 Feb 2025, 17:00.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Chione Ltd. 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact 0001590232
Marcin Czernik 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact
Andreas Hadjimichael 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact
Anastasis Nikolaou 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact
Wiaczeslaw Smolokowski 7.6% 2,605,351 0 2,605,351 /s/ Shalom Leaf, as attorney-in-fact Shalom Leaf, as attorney-in-fact
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Here you can make detailed settings or revoke your consent (in part if necessary) with effect for the future. For further information, please refer to our Privacy Policy .